How to calculate the average of a cell array?

Question

Ashfaq Ahmed 2023-8-7

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2005697-how-to-calculate-the-average-of-a-cell-array

回答： Les Beckham 2023-8-7

Hi, I have a cell array like this -

T = {[10, 1, 30], [15, 2, 10], [20, 3, 20]}
T = 1×3 cell array
    {[10 1 30]}    {[15 2 10]}    {[20 3 20]}

I want to calculate the mean of T in a way that the result is a 1x3 double. And the result is,

T = [15, 2, 20]

It means the result should average the values of its position. (10+15+20)/3 = 15

Thank you!!

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Answer 1

Voss 2023-8-7

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https://ww2.mathworks.cn/matlabcentral/answers/2005697-how-to-calculate-the-average-of-a-cell-array#answer_1284362

在 MATLAB Online 中打开

T = {[10, 1, 30], [15, 2, 10], [20, 3, 20]}
T = 1×3 cell array
    {[10 1 30]}    {[15 2 10]}    {[20 3 20]}
M = vertcat(T{:})
M = 3×3
    10     1    30
    15     2    10
    20     3    20
meanT = mean(M,1)
meanT = 1×3
    15     2    20

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Answer 2

Les Beckham 2023-8-7

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2005697-how-to-calculate-the-average-of-a-cell-array#answer_1284372

在 MATLAB Online 中打开

T = {[10, 1, 30], [15, 2, 10], [20, 3, 20]}
T = 1×3 cell array
    {[10 1 30]}    {[15 2 10]}    {[20 3 20]}
A = vertcat(T{:}) % make an array from the elements of the cell array by stacking them
A = 3×3
    10     1    30
    15     2    10
    20     3    20
m = mean(A) % average the columns
m = 1×3
    15     2    20